User interface for a portion of a display screen



The FIGURE is a front view of a user interface for a portion of adisplay screen showing our new design.

The broken line drawing of the square and the area within the squarescreen is for illustrative purposes only and forms no part of theclaimed design. The broken line showing of the display screen is forillustrative purposes only and forms no part of the claimed design.

The ornamental design for a user interface for a portion of a displayscreen, as shown and described.